It looks like the CrazyFlie build doesn't work properly on the latest Stable v1.7.3. I don't have any radio communications and cfbridge never shows "connected". I also don't have the Mavlink stream being transmitted over the USB.
So far, I have discovered that the Px4/Firmware commit 981dac8e955b3a4194421605dda7a09b7c16bbc5 does seem to work - I can see the Mavlink stream over USB and the CrazyRadio PA connects and
Note: this is the first time that I am trying to run the Px4 stack on the CrazyFlie, so I am not really sure what is/isn't supposed to be working. I am using a brand new CrazyFlie 2.0, so I assume that NRF51 firmware from BitCraze should be relatively new.
@dennisss do you have any ideas?